The Dynamic Analysis Of Cooperative Grids Composed Of Prestressed Cables And Chord Members

Develop, use and analyze the domestic other prestressing force space steel structure in this text. And heavy to step room build to shake foundation that suffer from structure, probe into prestressing force space the superiority and develop the prospect used of steel structure. Ask for pole at grid structure idea and at the quiet foundation who strength analyses - with prestressing force, According to assuming and static basically that calculates models in strength, adopt the table law of decomposition reaction of shaking type , Carry on power analyse, compare ordinary grids shelf with prestressing force ask for pole at grids shelf at dynamic action( mainly vertical at earthquake action) - through finite element general program Ansys response, it is ordinary without being analysed and find for grids shelf ask for the pole from grids shelves shaking present intensive to distribute at frequency for - at prestressing forces, Under the same conditions, prestressing force ask for in coordination with relatively ordinary grids have kind antidetonation performance by shelf shelf grids poles. Combine grids shelf node and Cable-Suspended Structures the pattern and characteristics of node and give and publish one a kind of new-type joining gentles. Combine the structure form of this kind of structure and characteristic of constructing, has discussed that installs the method in its scope of application and construction suitable for this kind of structure. Have chased a analysis to the loss of prestressing force of this kind of structure, and has summarized it and compensate design under the method and ideal state to calculate. Carry on the theory of prestressing force once and a lot of theory analysis of prestressing force singly to this kind of structure. Have pointed out that the settlement of a lot of prestressing force with very better theory draws relatively big problem out of shape caused single each. Should consider in its technology of constructing many times that one is drawn.Analyze and think at dynamic (mainly earthquake action) action feasible structure system the structure through this text research. It is the structure pattern worth continuing studying. Have pointed out the direction in which this structure still needs to continue studying too in addition.